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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

1. When developing a Lightning web component, which setting displays lightninglayout-items im one column on small devices, such as mobile phones, and in two columns on tablet-size and desktop-size screens?

A) Set size="12" tablet-device-size="6"
B) Set size="6" small-device-size="12"
C) Set size="6" mobile-device-size="12"
D) Set size="12" medium-device-size="6"

2. A company notices that their unit tests in a test class with many methods to create many records for prerequisite reference data are slow.
What can a developer to do address the issue?

A) Move the prerequisite reference data setup to the constructor for the test class.
B) Turn off triggers, flows, and validations when running tests.
C) Move the prerequisite reference data setup to a TestDataFactory and call that from each test method.
D) Move the prerequisite reference data setup to a @testSetup method in the test class.

3. Universal Containers analyzes a Lightning web component and its Apex controller class that retrieves a list of contacts associated with an account. The code snippets are as follows:

Based on the code snippets, what change should be made to display the contacts' mailing addresses in the Lightning web component?

A) Modify the SOQL guery in the getAccountContacts method to include the MailingAddress field.
B) Extend the lightning-datatable component in the Lightning web component to include a column for the MailingAddress field.
C) Modify the SOQL query in the getAccountContacts method to include the MailingAddress field and update the columns attribute in javascript file to add Mailing address fields.
D) Add a new method in the Apex controller class to retneve the mailing addresses separately and modify the Lightning web component to invoke this method.

4. A company recently deployed a Visualforce page with a custom controller that has a data grid of information about Opportunities in the org. Users report that they receive a "Maximum view state size limit" error message under certain conditions.
According to Visualforce best practice, which three actions should the developer take to reduce the view state?
Choose 3 answers

A) Use the final keyword in the controller for variables that will not change.
B) Use the private keyword in the controller for variables,
C) Use the transient keyword in the Apex controller for variables that do not maintain state.
D) Refine any SOQL queries to return only data relevant to the page.
E) Use filters and pagination to reduce the amount of data.

5. How should a developer verify that a specific Account record is being tested in a test class for a Visualforce controller?

A) Instantiate the page reference in the test class, insert the Account inthe test class, then use system.setFarentRecordrd() .get() to set the Account ID,
B) Insert the Account into Salesforce, instantiate the page reference in the test class, then use system. setFarentRecordId() .get() to set the Account ID.{of Instantiate the page reference in the test class, insert the Account inthe test class, then use =seeAllData=trus to view the Account.
C) Insert the Account in the test class, instantiate the page reference in the test class, then use System.currentFageReference() .getFarameters() .put{) to set the Account ID.

Solutions: